HDQ may refer to:
HDQ, telegraph code for Hualong South railway station, China Hung Drawn Quartet, band of Raymond MacDonald, British saxophonist HDQ, ICAO airport code for Aero Feliz, Mexico HDQ, abbreviation for Health in Emergencies & Disasters Quarterly, publication of University of Social Welfare and Rehabilitation Sciences, Iran HDQ, division code of Hedong, Tianjin, China HDQ Neutral, chemical that was the subject of a 2023 class-action lawsuit against GEO Group
See also